The new graphics cards from AMD are still engraved in 7 nm and are based on the new RDNA2 architecture. The latter offers at least twice the performance compared to the previous generation (RX 5700 XT) for 4K games such as Battlefield V, Doom Eternal, Forza Horizon 4 or Shadow of the Tomb Raider.
Radeon RX 6800, RX 6800 XT and RX 6900 XT
AMD first revealed the graphics card Radeon RX 6800 The device has 60 processing units (CU or Compute Units), a frequency of 1815 MHz in the game and 2105 MHz in the boost, 16 GB GDDR6 memory and a TDP of 250 W. The competitor at NVIDIA is the RTX 3070 or RTX 2080 Ti .
Then the American company presented one “XT” version of the Radeon RX 6800, which offers 72 processing units (CU) and above all increased frequencies (2015 MHz in the game, 2250 MHz in the boost). The video memory is still 16 GB and the TDP is 300 W. It would compete with the RTX 3080 on the NVIDIA side.
Finally, Lisa Su (CEO of AMD) presented her most powerful graphics card in the new RDNA2 architecture: the Radeon RX 6900 XT. It has no less than 80 processing units (CU), a frequency of 2015 MHz in the game and 2250 MHz in the boost, still 16 GB of GDDR6 memory and a TDP of 300 W. It wants to compete with the RTX 3090 … for much less.
New features of the RDNA 2 architecture
The three new high-end graphics cards benefit from several new functions, including 128 MB cache (Infinity cache) and an anger mode (automatic overclocking mode).
RDNA 2 also and above all brings Ray tracing (DXR) as well as VRS (Variable Rate Sharing)This makes a lot of sense as the next generation consoles from Microsoft and Sony are also based on the same architecture.
One function Smart Access Memory, reserved exclusively for AMD and for players with a Ryzen 5000 processor and a B550 or X570 motherboard, the RX 6800 XT and its new model will also achieve a performance gain of around 13% on Forza Horizon 4 in 4K Rage Mode.
Prices and availability
Radeon RX 6800 and Radeon RX 6800 XT cards are available from November 18th at the rate of each 579 USD and 649 USD. The top of the range RX 6900 XT will be available from December 8th at a rate of 999 USD. We’re still waiting for French prices.
In any case, we can hardly wait to be able to test one of the new “Big Navi” graphics cards!